SOLUTION: The average age of 5 members of a family is 21.if the age of grandfather is included, average age is increased by 8 years.age of grandfather is
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Question 1086491: The average age of 5 members of a family is 21.if the age of grandfather is included, average age is increased by 8 years.age of grandfather is Answer by PR1375(2) (Show Source):
You can put this solution on YOUR website! Avg age of 5 Members is 21, so total age is 21×5=105
If the GF age included avg Age increased by 8 So,
(21+ 8) ×(5+1)
=29×6 =174
Now subtract the new Total age from old, 174-105=69
age of the grandfather is 69
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